Relay protection logic visual calculus diagram generation method and system

Abstract

The invention provides a relay protection logic visual calculus diagram generation method and system. The generation method comprises the following steps: acquiring the logic expression of corresponding operation; eliminating the effect of parentheses in the logic expression on the logic operation priority; decomposing the logic expression into sub-expressions, wherein the sub-expressions are logic expressions or logic operators; storing the sub-expressions in the corresponding linked list nodes in turn so as to form a logic expression linked list; obtaining the corresponding graph element nodes according to the logic operators stored in each node of the logic expression linked list so as to obtain the graph element control linked list; and generating the calculus diagram according to thegraph element control linked list. According to the technical scheme, when the logic expression is converted into the visual logic calculus diagram, the influence of the parentheses on the logic operation priority in the logic expression is firstly eliminated, and the problem of low working efficiency caused by the cumbersome analysis process of the logic expression in case of generating the relayprotection logic visual calculus diagram in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of electric power system relay protection, and in particular relates to a method and system for generating a logic visualization calculation graph of relay protection. Background technique [0002] With the rapid development of the power system, the scale of the power grid is growing day by day, and the network structure of the power system is more complicated. It is particularly important to improve the safe operation level of the power system. [0003] When a fault or abnormal working condition occurs in the power system, the relay protection device can automatically remove the faulty device from the system in the shortest possible time and in the smallest area, or send a signal to the staff to eliminate the fault. It can be seen that the relay protection equipment is an important equipment to ensure the safe and reliable operation of the power system. The correctness of its action directly affects the sta...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and system for generating a relay protection logic visualization diagram, which is used to solve the problem of low work efficiency due to the cumbersome logical expression analysis process when generating a relay protection logic visualization diagram in the prior art

Images